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Lead Machine Learning Engineer - AI Agents

Upwork

$195,000 - $296,000
Oct 14, 2025
Remote, US
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Upwork is looking to drive the next generation of agentic intelligence through human-machine collaboration across its platform, influencing how autonomous agents are designed, built, and deployed at scale.

Requirements

  • Proven experience designing and deploying agent architectures, protocols, or LLM-powered workflows in production environments.
  • Strong engineering foundation with expertise in Python and Agent frameworks (e.g., LangChain, Autogen) and protocols (e.g., MCP, A2A).
  • Demonstrated success building developer platforms, APIs, SDKs, tools, or frameworks focusing on usability, extensibility, and developer support.
  • Familiarity with developer relations or solutions engineering, including documentation, demos, and consultative technical work.

Responsibilities

  • Architect and implement scalable infrastructure to support LLM-based Agentic systems, including multi-agent pipelines, and real-time orchestration.
  • Design APIs, SDKs, and internal tooling to accelerate productivity through AI agent adoption.
  • Drive developer advocacy by partnering to produce technical content, samples, and reference architectures that simplify integration with our platform.
  • Partner with cross-functional stakeholders to align technical solutions with product strategy, ensuring high developer productivity and agent performance.
  • Provide consulting and hands-on support to teams integrating with our agentic marketplace, advocating for best practices and evolving the ecosystem based on feedback.
  • Contribute to AI/ML research initiatives where applicable, representing Upwork at conferences and in technical communities.

Other

  • You have a growth mindset, strong communication skills, and an inclusive approach to leadership.
  • You are excited to work across functions and learn from challenges and teammates.
  • criminal background check may be required once a conditional job offer is made.
  • Qualified applicants with arrest or conviction records will be considered in accordance with applicable law, including the California Fair Chance Act and local Fair Chance ordinances.